Straw guider for thrashing machines



Feb. 24, 1925.

J. J. NIEDERKORN STRAW GUIDER FOR THRASHING MACHINES Filed Oct. 12, 1922r f r r r r r r' r r r r r r r r 3 Sheets-Sheet l John =lNiEderKnrn'Feb. 24, 1925. 1,527,816

J. J. NIEDERKORN I STRAW GUIDER FOR THRASHING MACHINES= Filed 001:. 12,1922 a 3 Sheets-Sheet 2 John J.Niedei knfrn Febszja, 1925. I 1,527,816

J. J. NIEDERKORN STRAW GUIDER FOR THRASHING MACHINES arm n Patented Feb.24, 192".

JOHN J. NIEDERKOEN, 0F PURE, WA$HINGTON, VVISCOITSIN.

STRAW GUIDER FOR THRASHING MACHINES.

Application filed Qctobcr 12, 1922. Serial No. 594,155.

To aZZ whom 2'25 may concern:

Be it known that 1, JOHN J. NIEDERKORN, a citizen of the United States,and resident of Port Washington, in the county of Ozaukee and State oflVisconsin, have invented certain new and useful Improve ments in StrawGuiders for Thrashing Machines; and I do hereby declare that thefollowing is a full, clear, and exact description thereof.

This invention relates to straw guides for thrashing machines, and isparticularly directed to an attachment adapted to be se-' cured to theblower pipe of an ordinary thrashing machine.

In thrashing machines, as ordinarily con structed, the straw is blowndirectly from the blower, or discharge, pipe into a pile. It frequentlyhappens that the straw is scattered over a considerable area as theblast of air from the discharge pipe tends to interfere with theformation of a compact pile of straw. I11 addition to this, there isfrequently a considerable amount of dust and dirt in the straw and thisis, therefore, blown directly into the pile.

The primary object of this invention is to provide a machine whichovercomes the above noted defects and forms a pile of straw in a compactmanner and free from dust or dirt.

Further objects are to provide a straw guide which will direct the strawfrom the blower pipe in any desired direction, which will momentarilyretain the straw and allow the dust to be blown away from it, which maybe moved to inoperative position, if de sired, and which may be readilycontrolled from a position remote from the end of the blower pipe.

Further objects are to provide a straw guide which is of comparativelylight weight, which is strong and durable, which is effective inoperation, and which may be cheaply and readily produced.

An embodiment of the invention is shown in the accompanying drawings, inwhich Figure 1 is a plan view of the blower pipe of a thrashing machinewith the straw guide in place.

Figure 2 is a side elevation of the structure shown in Figure 1.

Figure 3 is a sectional view on the line 3-3 of Figure 2.

Figure l is asectional view on the line 4-4. of Figure 2.

Referring more particularly to the drawings, it will be seen that theblower pipe 1 has the usual upturned portion 2 adjacent its outer oropen end. It is provided with a pair of rigidly attached guide straps 3which are provided with upturned guiding cams -0r lugs 4 and 5, the lugs5 being inturned, or turned over towards each other as may be seen fromFigure 2, to provide stops whose function will appearlater. Supports areslidably carried by these guide straps and comprise bands 6 and 7 andbrackets 8 and 9, respectively, secured thereto.

The brackets 9 are provided with bearings 10 within which are journaledthe ends of a transverse hollow shaft 11. This shaft carries a pluralityof spaced, curved straw guiding fingers 12 which extend beyond and infront of the end of the blower pipe. Arms 13 and ll are secured rigidlyto the shaft 11 in any suitable manner, as by means of clamping rings15. The central arm extends directly rearwardly and the side armsdiagonally and rearwardly. They are all riveted together, as indicatedat 16. The fingers 12 are preferably arranged in two rows, as shown, andin staggered relation.

.They may be supplemented by a transverse bar 17 to which each finger issecured.

The rear supportlng member composed of the band 6 and the bracket 8 issecured to the forward supporting member by means of an upper and alower longitudinalbar 18 and 19, respectively, so that they will move inunison. The upper bar 18 is provided with laterally extending cars 20curved to correspond to the curvature of the blower pipe.

The bracket 8 is substantially of inverted U-shape and straddles therear end of the arm 18 to guide and limit its motion. A spring 21 ismounted within the bracket 8 and below the arm 13 and urges such armupwardly.

The means for revolving the device about the end of the blower pipe maycomprise a pair of cables 22 and 23 passed around sheaves 2 1 and 25secured upon opposite sides of the blower pipe. The forward ends of thecables are attached to the ears 20. It will be seen, therefore, that byproperly manipulating the cables the device may be caused to revolveabout the blower pipes so as to point the fingers 12 in any desireddirection.

It may be found desirable to vary the angularity of the fingers 12 tovary the action of the device. This is readily accomplished by means ofa cable 26 passed be neath a pulley 2'7 and attached to the free end ofthe arm 13. By drawing upon the cable, the arm 13 is moved downwardlyand the fingers 12 coiu'espondingly tilted.

The end of the blower pipe is relatively inaccessible and it thereforeis desirable to provide means for controlling the device from a readilyaccessible point. This is readily accomplished by providing controllingdrums 28, 29 and 30 at a point easily within reach of the operator, asfor instance upon a lower portion of the blower pipe The cables 23, 2t),and 22 are 5 wrapped around and secured to the drums 28, 29 and 30,respectively. These drums are loosely mounted upon a supporting andoperating shaft 31 provided with a crank ried in bearings formed inbrackets 33 and 34 rig-idly attached to theblower pipe-1. A screw, orother securing means, '35 is mounted in the bracket 34 and has a reducedportion adapted to enter any of the grooves 36 formed in the shaft '3lto revolubly retain the shaft in any of its positions ofadjustmentlongitudinally of its} bearings;

The shaft 31 is adapted to selectively operatively engage any of thedrums. This isaccomplished by providing pins 37 and 38,which are securedto' the shaft and project from either side thereof. The pulley 29 isprovided with an internal cylindrical cavity 39 within which the pin 37may freely rotatep The pulley 28 is provided with a slot 40 within whichthe pin may seat, and by means of which the drum 28 may be operativelycoupled to the shaft 31 when the shaft is slid to its extreme left handposition.-

corresponding drum.

The shaft is revolubly and slidabl-y car-' It will thus be seen that bylongitudinally sliding the shaft 31 the pulleys may be selectively,operatively coupled thereto and may be rotated by means of the crank 32.

Pawls 44 are carried by a rod 46 carried by the brackets 33 and 3%,andcooperate with ratchet teeth &5 formed upon the drums-- one pawl beingprovided for each drum.

The operation of the device is as follows lVhen it is desired to shiftthe straw guide, the shaft 31 is slid into engagen'ient with one of thedrums 28 O1. 30 and the pawl of the drum, which is not engaged, israised. The crank is then rotated and the appropriate cable 22 or 23wound upon its drum, the other cable unwinding from the lVhcn thedesired position has been attained, the pawl is dropped into place. Ifit is desired to change the angularity of the fingers 12, the shaft 31'is slid until the drum 29 is operativelyjcoupled thereto, The crank isthen rotated to move the cable 26 and correspondingly move the arm 13,thereby rocking the fingers '12.

It will be seen that a straw guide has been provided which may bepointed in any direction desired to correspondingly control the shapingof the straw pile and to prevent the scattering of the straw;

It will further be seen that the angular settingof the fingers maybeaccurately controlled and' adjusted to suit any condition.

It will further be seen that the parts may be readily controlled from aremote point easily accessible to the operator.

I claim p A straw guide-for thrashingmachine having a blower pipecomprising a support slidably surrounding said pipe, a rock shaftcarried by said support, spaced fingers projectingfrom said rock shaft,a lever operatively connected to said rock shaft, a spring positioned"between said lever and pipe, a cable attached to said lever, a pair ofcables attached to opposite sides of said support,

means for guiding said cables, a plurality of drums to which said cablesare attached, a manually operable slidably and revolubly mounted shaftloosely passing through said drums, and cooperative means carried bysaid drums and shaft, whereby when said shaft is longitudinally movedthe drums are selectively coupled thereto.

In testimony that I claim the foregoing I have hereunto set my hand atPort Wash ington, in the county of Ozaukee and State of Wisconsin.

JOHN J. NIEDERKORY-

